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Finding the Fourth Proportional to 71,369.20, 107,028.60 and 24,611.20

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Solution

The fourth proportional to 71,369.20, 107,028.60 and 24,611.20 is: 36,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.20 : 107,028.60 = 24,611.20 : x
  2. Step 2: Convert to fraction form
    71,369.20/107,028.60 = 24,611.20/x
  3. Step 3: Cross multiply
    71,369.20x = 107,028.60 × 24,611.20
  4. Step 4: Simplify right side
    71,369.20x = 2,634,102,280.32
  5. Step 5: Solve for x
    x = 2,634,102,280.32/71,369.20
  6. Step 6: Final answer
    x = 36,908.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.